Brush.



7 No. 840,106. PATENTED JAN. 1, 1907.

J. F. BOWDITCH.

BRUSH. APPLIGATION EILED JULY28. 1905..

, u|||||||||n||| lllllllllll' \{IIIIIII UNITED STATES PATENT oEEIoE.

Specification of Letters Patent.

' Patented Jan. 1, 1907.

Application filed July 28, 1905. Serial No. 271,599.

To ctZZ whom, it may concern.-

Be it known that 1, JOHN F. Bownrron, of

Boston, in the county of Suffolk and State of Massachusetts, haveinvented certain new and useful Improvements in Brushes, of

p which the following is a specification.

sent views illustrating different dispositions This invention relates tothat class of brushes in which a brush head or body is provided withbrush material in such manner that the brush material may be quickly andsecurely applied and may be removed from the head when worn, so that thehead may be again supplied withfresh brush material, and, further, sothat, if desired, worn or partiallyworn brush material removed from onehead may be applied to another head for uses requiring shorter bristlesor brush material.

The invention consists in the improvements which I will now proceed todescribe and claim.

Of the accompanying drawings, forming part of this specification, Figure1 represents a perspective view of one of the units of my improvedbrush. Fig. 2 represents a perspective view representing the unit shownin Fig. 1 after it has been flattened. Fig. 3represents a perspectiveview of the socket portion of the unit shown in Fig. '1. Fig. 4represents a sectional view of the said socket portion. Fig. 5represents a sectional view showing some of the brush units assembled ona head or body. Figs. 6, 7, and 8'repre of the fastening-wires,hereinafter referred to, on the brush-head.

The same numerals of reference indicate the same parts in all thefigures.

In carrying out my invention I apply a plurality of brush units eachcomprising a tubular'sheet-metal socket 12 and-a mass of tuft bristles13, one end of which is inserted in the socket, the said end beingpreferably composed of the butts of the bristles, which are thickerthan"the outer portions, so that the portion'of the mass within the socket.is somewhat more bulky than the projecting portion. The base of the massof bristles is preferably ,saturated' with cement. The socket ispreferably tapered or decreased in diameterfrom its base to its outerend, as

shown. After-the-bristles have been inserted in the socket the latter ispreferably flattened, as indicated in Fig. 2', by applyingpressure inany suitable way to opposite sides of the socket. This flattening of thesocket causes it to assume a transversely-elongated form, with theresult that a difference in the stiffness of the tuft is obtained-thatis to 'say, the Seating of the "sockets with their minor axes inalinement transverse to the direotion of movement of the brush in usewill cause the bristles to present a greater re sistance than when thesockets are seated with their major axes in alinement. The setting ofthe sockets with respect to their axes will controlto some extent thestiffness of the brush, it being understood, of course, that in practiceall of the sockets will be seat ed with their axes in the same generaldirection to provide a uniform stiffness to the brush. The inner end ofthe socket is preferably provided with a seating-flange 14.

1.5 represents a brush head or body which may be cylindrical, flat, orof any other desired form and may be composed of wood or any othersuitable material. The above-deinto said body, the staples bestriding'the wire, the driving home of the staples causing the wire fasteningmember to be pulled down at the point of driving toward" or into con-'tact with the face of the body. This, in addition to providing asecuring means, at the same time forms a positioning means, as the bendin the wire formed by its being pulled down provides a stop againstlongitudinal movement of the socket on the wire, as well as tighteningthe wire and binding the socket more firmly against the face of thebody. The ends of the wire may be turned inwardly at 18 and inserted inthe body 15, as shown in Fig. 5.

In Figs. 6, 7 and 8 I have shown diagrammatically-diflerent arrangementsof the wire fastening members, the brush units being omitted. In Figs. 6and 7 the brush-head is indicated at 15 as cylindrical, and in Fig. 8 itis indicated at 15 as fiat. Fig. 7 is intended to show a singlefastening member 16, coiled helically around the cylindrical body 15.

It will be readily,understood'that all of the parts are applied to theface of the body portion and that no preparation of such body for thereception of the parts need be made,.

III)

the penetrating parts bein easily driven into the body. This not on ypermits of a rapid formation of thebrush, but also permits of thesockets being arranged in any desired form by simply stringing them onthe wire fasteningmember and stapling the latter at the desired points.This is of especial advantage in making brushes with the bristlesarranged so as to form a continuous row of bristles helically around thebody.

It will be seen that the brush units may be readily applied to a brushhead or body and as readily removed therefrom to be replaced by similarunworn units. Inasmuch as the units are not affected or injured by theirattachment and removal, it follows that units which have been shortenedby wear and have been removed from one head or body may be applied toanother head or body for use in a brush requiring shorter bristles.

l'claim v r 1. A brush comprising a body having a supporting-faceaseries of connected brush supporting-face, a plurality of brush units,each composed of a tubular socket seated on said face, and a tuft ofbristles secured in said socket, an elongated socket-connecting 'memberengaged with a series of sockets, and

supporting-face, a plura ity of brush units each composed of a tubularsocket seated on said face, and a tuft of'bristles secured in saidsocket, an elongated connecting flexible Wire engaged with a series ofsockets, and staples bestriding said wire and driven into the bodybetween brush units.

4. A brush comprisin a body having a supporting-face, a plural ity ofbrush units, each composed of a socket and a tuft of bristles securedtherein, an elongated socket connecting member engaged with a series ofsockets, said sockets and socket connecting member being mounted on saidface, and body-penetratingfastening members engaging said connectingmember and driven into the body to secure the sockets and member to saidface irftermediate its'ends.

In testimony whereof I have aflixed my signature in presence of twoWitnesses.

JOHN F. BOWDITCH.

W itnesses:

C. F. BROWN, E. BA'rcHELnER.

